Acetylene-gas generator.



ERNEST W. DUNHAM, OF TOPEKA, KANSAS.

AGETYLENE-GAS GENERATOR.

Specification of Letters Patent.

Patented J an. 2, 1912.

Application filedJanuary 30, 1911. SerialNo. 605,510. A

To all whom it may concern:

Be it known that.- I, ERNEST W. DUNHAM, a citizen of the United States, residing at Topeka, in the county ofShawnee and State of Kansas, have invented certain new and,

useful Improvements in Acetylene-Gas Gen- "erators; and I do declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to'make and use the same,

This invention relates to improvements ingas generators.

The object of the inventionis to provide a generator of this character with a wash box or purifier. which will be simple, strong and durable in construction, ellicient and reliablein operation and well adapted tothe particularly pointed out in the appended claim.

, The drawing is a vertical sectional view of a gas generator constructed in accordance with the invention.

In the embodiment of the invention 1 provide an outer water tankl in. which is arranged a gas. holder or hell 2 the lower end of which projects into the water of the tank and is thus sealed. The tank 1 is provided on its upper edge with suitable upwardly projecting guide standards 3 which are slid ably engaged by apertured ears or lugs 1 arranged on the upper end of the hell 2 whereby the latter is'guided in its up and down movement and prevented from binding against the sides of the tank 1. Arranged in the center of the hell 2 is a downwardly projecting tubular casing 5 'extending to the level of the lower end of the bell. In the lower end of the casing 5 is arranged an inwardly inclined upwardly projecting flange or wall 6 which forms a substantially V-shaped annular receptacle 7 adapted to containwater whereby a water seal is provided in the lower end of the easmg. lemovably engaged with the casing 5 another cylindrical casing 8 adapted to receive a carbid basket or holder 9 provided near its lower end with perforations through which water may enter to the carbid when the bell is lowered. The lower end of the casing 8 projects into the Water seal 7 arthe generator.

ranged in the lower end of the casing 5. The upper end of the casing 8 is closed by a cover 10 the outer edge of which projects radially and forms a flange 11 adapted to rest upon the upper end of the casing 5 thereby tightly closing the latter. The casmg 8 is provided on its upper end with a handle 12 whereby it may be'removed from the casing 5.

In the upper end of the easing 8 is also preferably arranged an escape valve 13 which may be opened when desired to permit the air to escape when charging The carbi'd basket or holder 9 is supported in the casing 8 above the lower end thereof by a flat spring 14 arranged on the inner side of the casing 8 as shown. In the center of the basket or holder 9 is arranged an upwardly projecting tube 15 which forms an outlet for the gas generated in the casing 8s The tube 15 opens through the bottom of the basket 9 and extends from said bottom to near the upper end of the same and on the upper end of the tube is arranged a wire netting cap or covering 16 preventing thg) entrance of any foreign matter into the tu e.

VVhen the hell 2 lowers in the tank 1 to a suflieient extent to bring the lower end of the casing 5 and the carbid basket 9 into enthrough the perforations in the basket and on coming into contact with the carbid will generate gas which rises into the upper portion of the casing 8 and enters the upper end of the discharge tube 15. From the tube 15 the gas passes downwardly through a'pipe- 1'7 and is discharged therefrom into a wash box arranged in the lower portion of the tank 1. The box 18 is partially filled with water through which the gas bubbles up from the connected lower endof the pipe 17 To the upper end of the wash box 18 is connected a pipe 19 extending upwardly into the bell 2 to approximately the height of the tank 1- whereby the gas from the wash box 18 is discharged into the upper portion of the bell. thus causing the latter to rise in theouter tank 1. The gas after entering the upper portion of the bell 2 passes therefrom through the gas discharge pipe 20 the inner end of which extends upwardly into the bell as shown. The discharge pipe 20 passes pling 21 to which is adapted to be connected the service pipe (notshown); 2 The wash box 18 's provlded with an inclined bottom or lower end 22 and has connected to one side at the lower end of said inclined bottom an inclined discharge .tube 23 which opens through the adjacent side of the tank 1 and is connected to the lower end of an overflow spout 2 f securedto the outer side of the tank 1. Thegas in bub bling up through the water in the wash box is thoroughly. cleansedof all impurities before passing into the gas bell. Theimpurities thus removed from the gas settle upon the inclined bottom of the wash box and are conducted therefrom through the tube 23 to the overflow spout 24, from which it may be removed with a suitable scoop or spoon, or otherwise, if desired.

In the opposite side of the tank 1 from the'discharge pipes is arranged a relief pipe 25 the inner end of which extends up vinto the bell 2 to the level of the outer outer end thereof extends] tank 1, while the upwardly and is connected with a discharge pipe leading to the atmosphere. Slidably engaged with the inner portion of the spout or relief pipe 25 is a trap cylinder 26 the upper end of which is closed and secured to the under side of-the top bell whereby said cylinder moves up and down with the bell. -W

tiith a normalvolume of gas the bell will 'ot rise suificiently high in the tank 1 to cause the lower end of the cylinder 26 to rise above the water level in the tank not enter said cylinder. accumulate in the bell .more rapidly thanfit is used or carried off through the discharge pipe 20 and the bell be thus forced upwardly a' sufiicient distance to bring the inner end ofthe trap cylinder 26 above the water line in the tank 1, the gas in the bell will escape through the trap cylinder 26 and into the relief or safety pipe 25 and from thence to the atmosphere thereby pre venting the danger of the bell being forced out-of. the tank by the pressure of the gas.

y In the upper portion of I the bell 2 is arranged a relief valve 27, said valve connecting the upper portion of the bell with the upper end of the cylinder 26 whereby the gas in the upper-portion of the bell may be let out through the safety discharge pipe 25 when it is desired to remove the bell The stem 28 'of the valve projects through the top of the bell. as

shown.

By constructing and arranging the gas generating mechanism. as herein shown and described it -W1ll be seen that the casing 8 Copies of this patent may be obtained for i may be a movable bell forming a part '1 so that the gas in the bell can' If the gas shouldwitnesses.

removed from the casing 5 and the carbid receptacle or basket then removed from the chamber and the carbid therein replenished without interfering with the gas in the bell or with the operation of the generator. When the casing 8 and carbid receptacle have been removed from the casing 5 the water in the wash box will prevent any gas from the bell passing back through the pipe 17, said wash box thus forming a trap. Then the casing 8 is in place in the casing 5 with the lower end of the former in the water seal 7 in the lower end of the latter, the seal will prevent any gas from passing from the casing 8 into the casing 5.

From the foregolng description taken in connection with the accompanying drawmgs the construction and operation of the invention will be readily understood without requiring amore extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of the invention as defined in the appended claim. p,

Having thus described my invention what I claim is:

A gas apparatus comprising a gasometer, of the latter and adapted to receive the gas generated in the gasometer, a tubular casin secured to and depending from the a' carbidholder remmvably located in said casing, a discharge tube projecting from the bottom of the carbid holder, a purifier located in the bottom ofthe gasometer and immersed in 'the water contained therein, said purifier having an inclined bottom, an inclined tube leading therefrom and ar ranged on a line with the Stl-ldbOftOIIl, a spout located on the eter and in communication with the pipe leading from the purifier, a pipe fixedly mounted in the gasometer and having an upstanding portion adapted for telescoping engagement wit-h the tube of the carbid holder, the opposite end of the pipe entering the bottom of the purifier, a pipe leadtop of the bell,

outside of the gasom- V ing from the top of the latter and extending a above the water contained within, the gas-v omete r, and a relief pipe for. the"apparatus thus constructed.

In testimony whereof I have hereunto set my hand in 'presence of two subscribing ERNEST "W. DUNHAM. Witnesses J. -W. SHELDON,

DAVID BROWN.

five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

